Copper Sulfide (CuS) Semiconductors

Topics Covered

Description

Copper sulfide belongs to a family of chemical compounds and minerals with the formula CuxSy. It can be classified into three groups, namely monosulfide, disulfide and mixed monosulfide. Copper sulfide occurs naturally in nature as a mineral called covellite. It conducts electricity moderately. Both synthetic materials and minerals contain copper sulfide.

Applications

Copper sulfide finds applications in the following:

Solar cells

Superionic conductors

Photodetectors

Electroconductive electrodes

Photothermal conversion devices

Microwave shielding coating

Active absorbents of radio waves

Gas sensors

Polarizers of infrared radiation

Chemical Properties

The chemical properties of copper sulfide are provided in the table below:

Chemical Properties

Chemical Formula

CuS

Molecular Weight

95.61

CAS No.

1317-40-4

Group

Copper 11
Sulfur 16

Crystal Structure

Hexagonal

Lattice Constant

3.961 Å

Electrical Properties

The electrical properties of copper sulfide are provided in the table below:

Electrical Properties

Band Gap

1.21 eV

Hole Mobility

5.5 - 9 cm2/Vs

Mechanical and Optical Properties

The mechanical and optical properties of copper sulfide are provided in the tables below:

Mechanical Properties

Density

4.6 g/cm3

Melting Point

103°C

Boiling Point

220°C

Optical Properties

Refractive Index

1.45

Safety Information

Safety Information

GHS Hazard Statements

H302: Harmful if swallowed.
H315: Irritating to skin.
H317: May cause an allergic skin reaction.
H318: Causes serious eye damage.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H341: Suspected of causing genetic defects.
H350: May cause cancer by inhalation.
H360: May damage fertility or the unborn child.
H372: Causes damage to organs through prolonged or repeated exposure by inhalation.
H410: Very toxic to aquatic life with long lasting effects

Safety Precautions

P201: Obtain special instructions before use.
P202: Do not handle until all safety precautions have been read and understood.
P260: Do not breathe dust or fume.
P264: Wash exposed skin thoroughly after handling.
P270: Do no eat, drink or smoke when using this product.
P272: Contaminated work clothing should not be allowed out of the workplace.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P284: In case of inadequate ventilation, wear respiratory protection.
P273: Avoid release to the environment

Leachables are trace amounts of chemicals originating from packaging, containers, medical devices or process equipment that end up as contaminants in medicinal products or food resulting in exposure to patients or consumers.

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